Merge tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This became a fairly large pull request.  In addition to the usual
  driver updates / fixes, there have been a high amount of cleanups in
  ASoC area, as well as control API helpers and kernel documentations
  fixes touching through the whole tree.

  In the driver side, the biggest changes are the support for new Intel
  SoC found on new x86 machines, and the updates of FireWire dice and
  oxfw drivers.

  Some remarkable items are below:

  ALSA core:
   - PCM mmap code cleanup, removal of arch-dependent codes
   - PCM xrun injection support
   - PCM hwptr tracepoint support
   - Refactoring of snd_pcm_action(), simplification of PCM locking
   - Robustified sequecner auto-load functionality
   - New control API helpers and lots of cleanups along with them
   - Lots of kerneldoc fixes and cleanups

  USB-audio:
   - The mixer resume code was largely rewritten, and the devices with
     quirks are resumed properly.
   - New hardware support: Focusrite Scarlett, Digidesign Mbox1,
     Denon/Marantz DACs, Zoom R16/24

  FireWire:
   - DICE driver updates with better duplex and sync support, including
     MIDI support
   - New OXFW driver for Oxford Semiconductor FW970/971 chipset,
     including the previous LaCie Speakers device.  Fullduplex and MIDI
     support included as well as DICE driver.

  HD-audio:
   - Refactoring the driver-caps quirk handling in snd-hda-intel
   - More consistent control names representing the topology better
   - Fixups: HP mute LED with ALC268 codec, Ideapad S210 built-in mic
     fix, ASUS Z99He laptop EAPD

  ASoC:
   - Conversion of AC'97 drivers to use regmap, bringing us closer to
     the removal of the ASoC level I/O code
   - Clean up a lot of old drivers that were open coding things that
     have subsequently been implemented in the core
   - Some DAPM performance improvements
   - Removal of the now seldom used CODEC mutex
   - Lots of updates for the newer Intel SoC support, including support
     for the DSP and some Cherrytrail and Braswell machine drivers
   - Support for Samsung boards using rt5631 as the CODEC
   - Removal of the obsolete AFEB9260 machine driver
   - Driver support for the TI TS3A227E headset driver used in some
     Chrombeooks

  Others:
   - ASIHPI driver update and cleanups
   - Lots of dev_*() printk conversions
   - Lots of trivial cleanups for the codes spotted by Coccinelle"

* tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits)
  ALSA: pcxhr: NULL dereference on probe failure
  ALSA: lola: NULL dereference on probe failure
  ALSA: hda - Add "eapd" model string for AD1986A codec
  ALSA: hda - Add EAPD fixup for ASUS Z99He laptop
  ALSA: oxfw: Add hwdep interface
  ALSA: oxfw: Add support for capture/playback MIDI messages
  ALSA: oxfw: add support for capturing PCM samples
  ALSA: oxfw: Add support AMDTP in-stream
  ALSA: oxfw: Add support for Behringer/Mackie devices
  ALSA: oxfw: Change the way to start stream
  ALSA: oxfw: Add proc interface for debugging purpose
  ALSA: oxfw: Change the way to make PCM rules/constraints
  ALSA: oxfw: Add support for AV/C stream format command to get/set supported stream formation
  ALSA: oxfw: Change the way to name card
  ALSA: dice: Add support for MIDI capture/playback
  ALSA: dice: Add support for capturing PCM samples
  ALSA: dice: Support for non SYT-Match sampling clock source mode
  ALSA: dice: Add support for duplex streams with synchronization
  ALSA: dice: Change the way to start stream
  ALSA: jack: Add dummy snd_jack_set_key() definition
  ...

10 files changed, 515 insertions, 246 deletions

diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index 5017176bfaa1..e9273fb2a505 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -1,6 +1,6 @@
 /*
  *  Asihpi soundcard
- *  Copyright (c) by AudioScience Inc <alsa@audioscience.com>
+ *  Copyright (c) by AudioScience Inc <support@audioscience.com>
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of version 2 of the GNU General Public License as
@@ -28,7 +28,6 @@
 #include "hpioctl.h"
 #include "hpicmn.h"
 
-
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
@@ -47,7 +46,7 @@
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
-MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx "
+MODULE_DESCRIPTION("AudioScience ALSA ASI5xxx ASI6xxx ASI87xx ASI89xx "
 			HPI_VER_STRING);
 
 #if defined CONFIG_SND_DEBUG_VERBOSE
@@ -87,11 +86,11 @@ MODULE_PARM_DESC(enable_hpi_hwdep,
 #ifdef KERNEL_ALSA_BUILD
 static char *build_info = "Built using headers from kernel source";
 module_param(build_info, charp, S_IRUGO);
-MODULE_PARM_DESC(build_info, "built using headers from kernel source");
+MODULE_PARM_DESC(build_info, "Built using headers from kernel source");
 #else
 static char *build_info = "Built within ALSA source";
 module_param(build_info, charp, S_IRUGO);
-MODULE_PARM_DESC(build_info, "built within ALSA source");
+MODULE_PARM_DESC(build_info, "Built within ALSA source");
 #endif
 
 /* set to 1 to dump every control from adapter to log */
@@ -110,7 +109,7 @@ static int adapter_fs = DEFAULT_SAMPLERATE;
 struct clk_source {
 	int source;
 	int index;
-	char *name;
+	const char *name;
 };
 
 struct clk_cache {
@@ -125,6 +124,16 @@ struct snd_card_asihpi {
 	struct pci_dev *pci;
 	struct hpi_adapter *hpi;
 
+	/* In low latency mode there is only one stream, a pointer to its
+	 * private data is stored here on trigger and cleared on stop.
+	 * The interrupt handler uses it as a parameter when calling
+	 * snd_card_asihpi_timer_function().
+	 */
+	struct snd_card_asihpi_pcm *llmode_streampriv;
+	struct tasklet_struct t;
+	void (*pcm_start)(struct snd_pcm_substream *substream);
+	void (*pcm_stop)(struct snd_pcm_substream *substream);
+
 	u32 h_mixer;
 	struct clk_cache cc;
 
@@ -289,21 +298,17 @@ static void print_hwparams(struct snd_pcm_substream *substream,
 {
 	char name[16];
 	snd_pcm_debug_name(substream, name, sizeof(name));
-	snd_printd("%s HWPARAMS\n", name);
-	snd_printd(" samplerate %d Hz\n", params_rate(p));
-	snd_printd(" channels %d\n", params_channels(p));
-	snd_printd(" format %d\n", params_format(p));
-	snd_printd(" subformat %d\n", params_subformat(p));
-	snd_printd(" buffer %d B\n", params_buffer_bytes(p));
-	snd_printd(" period %d B\n", params_period_bytes(p));
-	snd_printd(" access %d\n", params_access(p));
-	snd_printd(" period_size %d\n", params_period_size(p));
-	snd_printd(" periods %d\n", params_periods(p));
-	snd_printd(" buffer_size %d\n", params_buffer_size(p));
-	snd_printd(" %d B/s\n", params_rate(p) *
-		params_channels(p) *
+	snd_printdd("%s HWPARAMS\n", name);
+	snd_printdd(" samplerate=%dHz channels=%d format=%d subformat=%d\n",
+		params_rate(p), params_channels(p),
+		params_format(p), params_subformat(p));
+	snd_printdd(" buffer=%dB period=%dB period_size=%dB periods=%d\n",
+		params_buffer_bytes(p), params_period_bytes(p),
+		params_period_size(p), params_periods(p));
+	snd_printdd(" buffer_size=%d access=%d data_rate=%dB/s\n",
+		params_buffer_size(p), params_access(p),
+		params_rate(p) * params_channels(p) *
 		snd_pcm_format_width(params_format(p)) / 8);
-
 }
 
 static snd_pcm_format_t hpi_to_alsa_formats[] = {
@@ -375,7 +380,7 @@ static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
 					  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 					  HPI_CONTROL_SAMPLECLOCK, &h_control);
 		if (err) {
-			snd_printk(KERN_ERR
+			dev_err(&asihpi->pci->dev,
 				"No local sampleclock, err %d\n", err);
 		}
 
@@ -481,7 +486,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 			params_buffer_bytes(params),  runtime->dma_addr);
 		if (err == 0) {
 			snd_printdd(
-				"stream_host_buffer_attach succeeded %u %lu\n",
+				"stream_host_buffer_attach success %u %lu\n",
 				params_buffer_bytes(params),
 				(unsigned long)runtime->dma_addr);
 		} else {
@@ -491,12 +496,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 		}
 
 		err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
-						&dpcm->hpi_buffer_attached,
-						NULL, NULL, NULL);
-
-		snd_printdd("stream_host_buffer_attach status 0x%x\n",
-				dpcm->hpi_buffer_attached);
-
+				&dpcm->hpi_buffer_attached, NULL, NULL, NULL);
 	}
 	bytes_per_sec = params_rate(params) * params_channels(params);
 	width = snd_pcm_format_width(params_format(params));
@@ -538,7 +538,7 @@ static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
 	int expiry;
 
 	expiry = HZ / 200;
-	/*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
+
 	expiry = max(expiry, 1); /* don't let it be zero! */
 	dpcm->timer.expires = jiffies + expiry;
 	dpcm->respawn_timer = 1;
@@ -554,6 +554,48 @@ static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream)
 	del_timer(&dpcm->timer);
 }
 
+static void snd_card_asihpi_pcm_int_start(struct snd_pcm_substream *substream)
+{
+	struct snd_card_asihpi_pcm *dpcm;
+	struct snd_card_asihpi *card;
+
+	BUG_ON(!substream);
+
+	dpcm = (struct snd_card_asihpi_pcm *)substream->runtime->private_data;
+	card = snd_pcm_substream_chip(substream);
+
+	BUG_ON(in_interrupt());
+	tasklet_disable(&card->t);
+	card->llmode_streampriv = dpcm;
+	tasklet_enable(&card->t);
+
+	hpi_handle_error(hpi_adapter_set_property(card->hpi->adapter->index,
+		HPI_ADAPTER_PROPERTY_IRQ_RATE,
+		card->update_interval_frames, 0));
+}
+
+static void snd_card_asihpi_pcm_int_stop(struct snd_pcm_substream *substream)
+{
+	struct snd_card_asihpi_pcm *dpcm;
+	struct snd_card_asihpi *card;
+
+	BUG_ON(!substream);
+
+	dpcm = (struct snd_card_asihpi_pcm *)substream->runtime->private_data;
+	card = snd_pcm_substream_chip(substream);
+
+	hpi_handle_error(hpi_adapter_set_property(card->hpi->adapter->index,
+		HPI_ADAPTER_PROPERTY_IRQ_RATE, 0, 0));
+
+	if (in_interrupt())
+		card->llmode_streampriv = NULL;
+	else {
+		tasklet_disable(&card->t);
+		card->llmode_streampriv = NULL;
+		tasklet_enable(&card->t);
+	}
+}
+
 static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 					   int cmd)
 {
@@ -564,10 +606,10 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 	char name[16];
 
 	snd_pcm_debug_name(substream, name, sizeof(name));
-	snd_printdd("%s trigger\n", name);
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
+		snd_printdd("%s trigger start\n", name);
 		snd_pcm_group_for_each_entry(s, substream) {
 			struct snd_pcm_runtime *runtime = s->runtime;
 			struct snd_card_asihpi_pcm *ds = runtime->private_data;
@@ -588,7 +630,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 				* data??
 				*/
 				unsigned int preload = ds->period_bytes * 1;
-				snd_printddd("%d preload x%x\n", s->number, preload);
+				snd_printddd("%d preload %d\n", s->number, preload);
 				hpi_handle_error(hpi_outstream_write_buf(
 						ds->h_stream,
 						&runtime->dma_area[0],
@@ -611,16 +653,16 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 			} else
 				break;
 		}
-		snd_printdd("start\n");
 		/* start the master stream */
-		snd_card_asihpi_pcm_timer_start(substream);
+		card->pcm_start(substream);
 		if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
 			!card->can_dma)
 			hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 		break;
 
 	case SNDRV_PCM_TRIGGER_STOP:
-		snd_card_asihpi_pcm_timer_stop(substream);
+		snd_printdd("%s trigger stop\n", name);
+		card->pcm_stop(substream);
 		snd_pcm_group_for_each_entry(s, substream) {
 			if (snd_pcm_substream_chip(s) != card)
 				continue;
@@ -638,7 +680,6 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 			} else
 				break;
 		}
-		snd_printdd("stop\n");
 
 		/* _prepare and _hwparams reset the stream */
 		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
@@ -651,13 +692,13 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 		break;
 
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		snd_printdd("pause release\n");
+		snd_printdd("%s trigger pause release\n", name);
+		card->pcm_start(substream);
 		hpi_handle_error(hpi_stream_start(dpcm->h_stream));
-		snd_card_asihpi_pcm_timer_start(substream);
 		break;
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		snd_printdd("pause\n");
-		snd_card_asihpi_pcm_timer_stop(substream);
+		snd_printdd("%s trigger pause push\n", name);
+		card->pcm_stop(substream);
 		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 		break;
 	default:
@@ -729,9 +770,8 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 	u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
 	char name[16];
 
-	snd_pcm_debug_name(substream, name, sizeof(name));
 
-	snd_printdd("%s snd_card_asihpi_timer_function\n", name);
+	snd_pcm_debug_name(substream, name, sizeof(name));
 
 	/* find minimum newdata and buffer pos in group */
 	snd_pcm_group_for_each_entry(s, substream) {
@@ -769,10 +809,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 						s->number);
 				ds->drained_count++;
 				if (ds->drained_count > 20) {
-					unsigned long flags;
-					snd_pcm_stream_lock_irqsave(s, flags);
-					snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
-					snd_pcm_stream_unlock_irqrestore(s, flags);
+					snd_pcm_stop_xrun(s);
 					continue;
 				}
 			} else {
@@ -794,19 +831,21 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 				newdata);
 		}
 
-		snd_printdd("hw_ptr 0x%04lX, appl_ptr 0x%04lX\n",
+		snd_printddd(
+			"timer1, %s, %d, S=%d, elap=%d, rw=%d, dsp=%d, left=%d, aux=%d, space=%d, hw_ptr=%ld, appl_ptr=%ld\n",
+			name, s->number, state,
+			ds->pcm_buf_elapsed_dma_ofs,
+			ds->pcm_buf_host_rw_ofs,
+			pcm_buf_dma_ofs,
+			(int)bytes_avail,
+
+			(int)on_card_bytes,
+			buffer_size-bytes_avail,
 			(unsigned long)frames_to_bytes(runtime,
 						runtime->status->hw_ptr),
 			(unsigned long)frames_to_bytes(runtime,
-						runtime->control->appl_ptr));
-
-		snd_printdd("%d S=%d, "
-			"rw=0x%04X, dma=0x%04X, left=0x%04X, "
-			"aux=0x%04X space=0x%04X\n",
-			s->number, state,
-			ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs,
-			(int)bytes_avail,
-			(int)on_card_bytes, buffer_size-bytes_avail);
+						runtime->control->appl_ptr)
+		);
 		loops++;
 	}
 	pcm_buf_dma_ofs = min_buf_pos;
@@ -824,16 +863,18 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 
 	next_jiffies = max(next_jiffies, 1U);
 	dpcm->timer.expires = jiffies + next_jiffies;
-	snd_printdd("jif %d buf pos 0x%04X newdata 0x%04X xfer 0x%04X\n",
+	snd_printddd("timer2, jif=%d, buf_pos=%d, newdata=%d, xfer=%d\n",
 			next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
 
 	snd_pcm_group_for_each_entry(s, substream) {
 		struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
+		runtime = s->runtime;
 
 		/* don't link Cap and Play */
 		if (substream->stream != s->stream)
 			continue;
 
+		/* Store dma offset for use by pointer callback */
 		ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
 
 		if (xfercount &&
@@ -856,7 +897,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 			}
 
 			if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-				snd_printddd("P%d write1 0x%04X 0x%04X\n",
+				snd_printddd("write1, P=%d, xfer=%d, buf_ofs=%d\n",
 					s->number, xfer1, buf_ofs);
 				hpi_handle_error(
 					hpi_outstream_write_buf(
@@ -866,7 +907,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 				if (xfer2) {
 					pd = s->runtime->dma_area;
 
-					snd_printddd("P%d write2 0x%04X 0x%04X\n",
+					snd_printddd("write2, P=%d, xfer=%d, buf_ofs=%d\n",
 							s->number,
 							xfercount - xfer1, buf_ofs);
 					hpi_handle_error(
@@ -876,7 +917,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 							&ds->format));
 				}
 			} else {
-				snd_printddd("C%d read1 0x%04x\n",
+				snd_printddd("read1, C=%d, xfer=%d\n",
 					s->number, xfer1);
 				hpi_handle_error(
 					hpi_instream_read_buf(
@@ -884,7 +925,7 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 						pd, xfer1));
 				if (xfer2) {
 					pd = s->runtime->dma_area;
-					snd_printddd("C%d read2 0x%04x\n",
+					snd_printddd("read2, C=%d, xfer=%d\n",
 						s->number, xfer2);
 					hpi_handle_error(
 						hpi_instream_read_buf(
@@ -892,16 +933,38 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 							pd, xfer2));
 				}
 			}
+			/* ? host_rw_ofs always ahead of elapsed_dma_ofs by preload size? */
 			ds->pcm_buf_host_rw_ofs += xfercount;
 			ds->pcm_buf_elapsed_dma_ofs += xfercount;
 			snd_pcm_period_elapsed(s);
 		}
 	}
 
-	if (dpcm->respawn_timer)
+	if (!card->hpi->interrupt_mode && dpcm->respawn_timer)
 		add_timer(&dpcm->timer);
 }
 
+static void snd_card_asihpi_int_task(unsigned long data)
+{
+	struct hpi_adapter *a = (struct hpi_adapter *)data;
+	struct snd_card_asihpi *asihpi;
+
+	WARN_ON(!a || !a->snd_card || !a->snd_card->private_data);
+	asihpi = (struct snd_card_asihpi *)a->snd_card->private_data;
+	if (asihpi->llmode_streampriv)
+		snd_card_asihpi_timer_function(
+			(unsigned long)asihpi->llmode_streampriv);
+}
+
+static void snd_card_asihpi_isr(struct hpi_adapter *a)
+{
+	struct snd_card_asihpi *asihpi;
+
+	WARN_ON(!a || !a->snd_card || !a->snd_card->private_data);
+	asihpi = (struct snd_card_asihpi *)a->snd_card->private_data;
+	tasklet_schedule(&asihpi->t);
+}
+
 /***************************** PLAYBACK OPS ****************/
 static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
 					  unsigned int cmd, void *arg)
@@ -937,7 +1000,7 @@ snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
 	snd_pcm_debug_name(substream, name, sizeof(name));
 
 	ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
-	snd_printddd("%s pointer = 0x%04lx\n", name, (unsigned long)ptr);
+	snd_printddd("%s, pointer=%ld\n", name, (unsigned long)ptr);
 	return ptr;
 }
 
@@ -1009,13 +1072,22 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 	runtime->private_free = snd_card_asihpi_runtime_free;
 
 	memset(&snd_card_asihpi_playback, 0, sizeof(snd_card_asihpi_playback));
-	snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
-	snd_card_asihpi_playback.period_bytes_min = PERIOD_BYTES_MIN;
-	/*?snd_card_asihpi_playback.period_bytes_min =
-	card->out_max_chans * 4096; */
-	snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
-	snd_card_asihpi_playback.periods_min = PERIODS_MIN;
-	snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
+	if (!card->hpi->interrupt_mode) {
+		snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
+		snd_card_asihpi_playback.period_bytes_min = PERIOD_BYTES_MIN;
+		snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
+		snd_card_asihpi_playback.periods_min = PERIODS_MIN;
+		snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
+	} else {
+		size_t pbmin = card->update_interval_frames *
+			card->out_max_chans;
+		snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
+		snd_card_asihpi_playback.period_bytes_min = pbmin;
+		snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
+		snd_card_asihpi_playback.periods_min = PERIODS_MIN;
+		snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / pbmin;
+	}
+
 	/* snd_card_asihpi_playback.fifo_size = 0; */
 	snd_card_asihpi_playback.channels_max = card->out_max_chans;
 	snd_card_asihpi_playback.channels_min = card->out_min_chans;
@@ -1050,7 +1122,7 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 		card->update_interval_frames);
 
 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
-		card->update_interval_frames * 2, UINT_MAX);
+		card->update_interval_frames, UINT_MAX);
 
 	snd_printdd("playback open\n");
 
@@ -1085,9 +1157,10 @@ snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
+	char name[16];
+	snd_pcm_debug_name(substream, name, sizeof(name));
 
-	snd_printddd("capture pointer %d=%d\n",
-			substream->number, dpcm->pcm_buf_dma_ofs);
+	snd_printddd("%s, pointer=%d\n", name, dpcm->pcm_buf_dma_ofs);
 	/* NOTE Unlike playback can't use actual samples_played
 		for the capture position, because those samples aren't yet in
 		the local buffer available for reading.
@@ -1115,8 +1188,6 @@ static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-
-
 static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi,
 					u32 h_stream)
 {
@@ -1183,11 +1254,21 @@ static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
 	runtime->private_free = snd_card_asihpi_runtime_free;
 
 	memset(&snd_card_asihpi_capture, 0, sizeof(snd_card_asihpi_capture));
-	snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
-	snd_card_asihpi_capture.period_bytes_min = PERIOD_BYTES_MIN;
-	snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
-	snd_card_asihpi_capture.periods_min = PERIODS_MIN;
-	snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
+	if (!card->hpi->interrupt_mode) {
+		snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
+		snd_card_asihpi_capture.period_bytes_min = PERIOD_BYTES_MIN;
+		snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
+		snd_card_asihpi_capture.periods_min = PERIODS_MIN;
+		snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
+	} else {
+		size_t pbmin = card->update_interval_frames *
+			card->out_max_chans;
+		snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
+		snd_card_asihpi_capture.period_bytes_min = pbmin;
+		snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
+		snd_card_asihpi_capture.periods_min = PERIODS_MIN;
+		snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / pbmin;
+	}
 	/* snd_card_asihpi_capture.fifo_size = 0; */
 	snd_card_asihpi_capture.channels_max = card->in_max_chans;
 	snd_card_asihpi_capture.channels_min = card->in_min_chans;
@@ -1212,7 +1293,7 @@ static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
 		card->update_interval_frames);
 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
-		card->update_interval_frames * 2, UINT_MAX);
+		card->update_interval_frames, UINT_MAX);
 
 	snd_pcm_set_sync(substream);
 
@@ -1296,8 +1377,9 @@ static const char * const asihpi_tuner_band_names[] = {
 	"TV PAL I",
 	"TV PAL DK",
 	"TV SECAM",
+	"TV DAB",
 };
-
+/* Number of strings must match the enumerations for HPI_TUNER_BAND in hpi.h */
 compile_time_assert(
 	(ARRAY_SIZE(asihpi_tuner_band_names) ==
 		(HPI_TUNER_BAND_LAST+1)),
@@ -1317,9 +1399,11 @@ static const char * const asihpi_src_names[] = {
 	"Analog",
 	"Adapter",
 	"RTP",
-	"Internal"
+	"Internal",
+	"AVB",
+	"BLU-Link"
 };
-
+/* Number of strings must match the enumerations for HPI_SOURCENODES in hpi.h */
 compile_time_assert(
 	(ARRAY_SIZE(asihpi_src_names) ==
 		(HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
@@ -1335,8 +1419,11 @@ static const char * const asihpi_dst_names[] = {
 	"Net",
 	"Analog",
 	"RTP",
+	"AVB",
+	"Internal",
+	"BLU-Link"
 };
-
+/* Number of strings must match the enumerations for HPI_DESTNODES in hpi.h */
 compile_time_assert(
 	(ARRAY_SIZE(asihpi_dst_names) ==
 		(HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
@@ -1351,7 +1438,7 @@ static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl,
 	if (err < 0)
 		return err;
 	else if (mixer_dump)
-		snd_printk(KERN_INFO "added %s(%d)\n", ctl->name, ctl->index);
+		dev_info(&asihpi->pci->dev, "added %s(%d)\n", ctl->name, ctl->index);
 
 	return 0;
 }
@@ -1625,18 +1712,7 @@ static const char * const asihpi_aesebu_format_names[] = {
 static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_info *uinfo)
 {
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 3;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-
-	strcpy(uinfo->value.enumerated.name,
-		asihpi_aesebu_format_names[uinfo->value.enumerated.item]);
-
-	return 0;
+	return snd_ctl_enum_info(uinfo, 1, 3, asihpi_aesebu_format_names);
 }
 
 static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
@@ -1863,22 +1939,7 @@ static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol,
 	if (num_bands < 0)
 		return num_bands;
 
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = num_bands;
-
-	if (num_bands > 0) {
-		if (uinfo->value.enumerated.item >=
-					uinfo->value.enumerated.items)
-			uinfo->value.enumerated.item =
-				uinfo->value.enumerated.items - 1;
-
-		strcpy(uinfo->value.enumerated.name,
-			asihpi_tuner_band_names[
-				tuner_bands[uinfo->value.enumerated.item]]);
-
-	}
-	return 0;
+	return snd_ctl_enum_info(uinfo, 1, num_bands, asihpi_tuner_band_names);
 }
 
 static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
@@ -2253,7 +2314,7 @@ static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
 	u32 h_control = kcontrol->private_value;
 	u16 mode;
 	int i;
-	u16 mode_map[6];
+	const char *mapped_names[6];
 	int valid_modes = 0;
 
 	/* HPI channel mode values can be from 1 to 6
@@ -2262,24 +2323,14 @@ static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
 	for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
 		if (!hpi_channel_mode_query_mode(
 			h_control, i, &mode)) {
-			mode_map[valid_modes] = mode;
+			mapped_names[valid_modes] = mode_names[mode];
 			valid_modes++;
 			}
 
 	if (!valid_modes)
 		return -EINVAL;
 
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = valid_modes;
-
-	if (uinfo->value.enumerated.item >= valid_modes)
-		uinfo->value.enumerated.item = valid_modes - 1;
-
-	strcpy(uinfo->value.enumerated.name,
-	       mode_names[mode_map[uinfo->value.enumerated.item]]);
-
-	return 0;
+	return snd_ctl_enum_info(uinfo, 1, valid_modes, mapped_names);
 }
 
 static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
@@ -2328,13 +2379,18 @@ static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
 /*------------------------------------------------------------
    Sampleclock source  controls
  ------------------------------------------------------------*/
-static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
+static const char const *sampleclock_sources[] = {
 	"N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
 	"SMPTE", "Digital1", "Auto", "Network", "Invalid",
-	"Prev Module",
+	"Prev Module", "BLU-Link",
 	"Digital2", "Digital3", "Digital4", "Digital5",
 	"Digital6", "Digital7", "Digital8"};
 
+	/* Number of strings must match expected enumerated values */
+	compile_time_assert(
+		(ARRAY_SIZE(sampleclock_sources) == MAX_CLOCKSOURCES),
+		assert_sampleclock_sources_size);
+
 static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_info *uinfo)
 {
@@ -2482,15 +2538,19 @@ static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
 static int snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
 				      struct hpi_control *hpi_ctl)
 {
-	struct snd_card *card = asihpi->card;
+	struct snd_card *card;
 	struct snd_kcontrol_new snd_control;
 
-	struct clk_cache *clkcache = &asihpi->cc;
+	struct clk_cache *clkcache;
 	u32 hSC =  hpi_ctl->h_control;
 	int has_aes_in = 0;
 	int i, j;
 	u16 source;
 
+	if (snd_BUG_ON(!asihpi))
+		return -EINVAL;
+	card = asihpi->card;
+	clkcache = &asihpi->cc;
 	snd_control.private_value = hpi_ctl->h_control;
 
 	clkcache->has_local = 0;
@@ -2592,7 +2652,7 @@ static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
 		if (err) {
 			if (err == HPI_ERROR_CONTROL_DISABLED) {
 				if (mixer_dump)
-					snd_printk(KERN_INFO
+					dev_info(&asihpi->pci->dev,
 						   "Disabled HPI Control(%d)\n",
 						   idx);
 				continue;
@@ -2657,9 +2717,8 @@ static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
 		case HPI_CONTROL_COMPANDER:
 		default:
 			if (mixer_dump)
-				snd_printk(KERN_INFO
-					"Untranslated HPI Control"
-					"(%d) %d %d %d %d %d\n",
+				dev_info(&asihpi->pci->dev,
+					"Untranslated HPI Control (%d) %d %d %d %d %d\n",
 					idx,
 					hpi_ctl.control_type,
 					hpi_ctl.src_node_type,
@@ -2674,7 +2733,7 @@ static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
 	if (HPI_ERROR_INVALID_OBJ_INDEX != err)
 		hpi_handle_error(err);
 
-	snd_printk(KERN_INFO "%d mixer controls found\n", idx);
+	dev_info(&asihpi->pci->dev, "%d mixer controls found\n", idx);
 
 	return 0;
 }
@@ -2837,8 +2896,7 @@ static int snd_asihpi_probe(struct pci_dev *pci_dev,
 				   &card);
 		if (err < 0)
 			return err;
-		snd_printk(KERN_WARNING
-			"**** WARNING **** Adapter index %d->ALSA index %d\n",
+		dev_warn(&pci_dev->dev, "Adapter index %d->ALSA index %d\n",
 			adapter_index, card->number);
 	}
 
@@ -2846,9 +2904,7 @@ static int snd_asihpi_probe(struct pci_dev *pci_dev,
 	asihpi->card = card;
 	asihpi->pci = pci_dev;
 	asihpi->hpi = hpi;
-
-	snd_printk(KERN_INFO "adapter ID=%4X index=%d\n",
-			asihpi->hpi->adapter->type, adapter_index);
+	hpi->snd_card = card;
 
 	err = hpi_adapter_get_property(adapter_index,
 		HPI_ADAPTER_PROPERTY_CAPS1,
@@ -2868,8 +2924,16 @@ static int snd_asihpi_probe(struct pci_dev *pci_dev,
 	if (err)
 		asihpi->update_interval_frames = 512;
 
-	if (!asihpi->can_dma)
-		asihpi->update_interval_frames *= 2;
+	if (hpi->interrupt_mode) {
+		asihpi->pcm_start = snd_card_asihpi_pcm_int_start;
+		asihpi->pcm_stop = snd_card_asihpi_pcm_int_stop;
+		tasklet_init(&asihpi->t, snd_card_asihpi_int_task,
+			(unsigned long)hpi);
+		hpi->interrupt_callback = snd_card_asihpi_isr;
+	} else {
+		asihpi->pcm_start = snd_card_asihpi_pcm_timer_start;
+		asihpi->pcm_stop = snd_card_asihpi_pcm_timer_stop;
+	}
 
 	hpi_handle_error(hpi_instream_open(adapter_index,
 			     0, &h_stream));
@@ -2879,6 +2943,9 @@ static int snd_asihpi_probe(struct pci_dev *pci_dev,
 
 	hpi_handle_error(hpi_instream_close(h_stream));
 
+	if (!asihpi->can_dma)
+		asihpi->update_interval_frames *= 2;
+
 	err = hpi_adapter_get_property(adapter_index,
 		HPI_ADAPTER_PROPERTY_CURCHANNELS,
 		&asihpi->in_max_chans, &asihpi->out_max_chans);
@@ -2896,20 +2963,21 @@ static int snd_asihpi_probe(struct pci_dev *pci_dev,
 		asihpi->in_min_chans = 1;
 	}
 
-	snd_printk(KERN_INFO "Has dma:%d, grouping:%d, mrx:%d\n",
+	dev_info(&pci_dev->dev, "Has dma:%d, grouping:%d, mrx:%d, uif:%d\n",
 			asihpi->can_dma,
 			asihpi->support_grouping,
-			asihpi->support_mrx
+			asihpi->support_mrx,
+			asihpi->update_interval_frames
 	      );
 
 	err = snd_card_asihpi_pcm_new(asihpi, 0);
 	if (err < 0) {
-		snd_printk(KERN_ERR "pcm_new failed\n");
+		dev_err(&pci_dev->dev, "pcm_new failed\n");
 		goto __nodev;
 	}
 	err = snd_card_asihpi_mixer_new(asihpi);
 	if (err < 0) {
-		snd_printk(KERN_ERR "mixer_new failed\n");
+		dev_err(&pci_dev->dev, "mixer_new failed\n");
 		goto __nodev;
 	}
 
@@ -2936,13 +3004,12 @@ static int snd_asihpi_probe(struct pci_dev *pci_dev,
 	err = snd_card_register(card);
 
 	if (!err) {
-		hpi->snd_card = card;
 		dev++;
 		return 0;
 	}
 __nodev:
 	snd_card_free(card);
-	snd_printk(KERN_ERR "snd_asihpi_probe error %d\n", err);
+	dev_err(&pci_dev->dev, "snd_asihpi_probe error %d\n", err);
 	return err;
 
 }
@@ -2950,6 +3017,16 @@ __nodev:
 static void snd_asihpi_remove(struct pci_dev *pci_dev)
 {
 	struct hpi_adapter *hpi = pci_get_drvdata(pci_dev);
+	struct snd_card_asihpi *asihpi = hpi->snd_card->private_data;
+
+	/* Stop interrupts */
+	if (hpi->interrupt_mode) {
+		hpi->interrupt_callback = NULL;
+		hpi_handle_error(hpi_adapter_set_property(hpi->adapter->index,
+			HPI_ADAPTER_PROPERTY_IRQ_RATE, 0, 0));
+		tasklet_kill(&asihpi->t);
+	}
+
 	snd_card_free(hpi->snd_card);
 	hpi->snd_card = NULL;
 	asihpi_adapter_remove(pci_dev);
@@ -2971,10 +3048,6 @@ static struct pci_driver driver = {
 	.id_table = asihpi_pci_tbl,
 	.probe = snd_asihpi_probe,
 	.remove = snd_asihpi_remove,
-#ifdef CONFIG_PM_SLEEP
-/*	.suspend = snd_asihpi_suspend,
-	.resume = snd_asihpi_resume, */
-#endif
 };
 
 static int __init snd_asihpi_init(void)
diff --git a/sound/pci/asihpi/hpi.h b/sound/pci/asihpi/hpi.h
index 20887241a3ae..4466bd2c5272 100644
--- a/sound/pci/asihpi/hpi.h
+++ b/sound/pci/asihpi/hpi.h
@@ -196,8 +196,10 @@ enum HPI_SOURCENODES {
 	    packets of RTP audio samples from other devices. */
 	HPI_SOURCENODE_RTP_DESTINATION = 112,
 	HPI_SOURCENODE_INTERNAL = 113,	     /**< node internal to the device. */
+	HPI_SOURCENODE_AVB = 114,	     /**< AVB input stream */
+	HPI_SOURCENODE_BLULINK = 115,	     /**< BLU-link input channel */
 	/* !!!Update this  AND hpidebug.h if you add a new sourcenode type!!! */
-	HPI_SOURCENODE_LAST_INDEX = 113	     /**< largest ID */
+	HPI_SOURCENODE_LAST_INDEX = 115	     /**< largest ID */
 		/* AX6 max sourcenode types = 15 */
 };
 
@@ -224,8 +226,11 @@ enum HPI_DESTNODES {
 	/** RTP stream output node - This node is a source for
 	    packets of RTP audio samples that are sent to other devices. */
 	HPI_DESTNODE_RTP_SOURCE = 208,
+	HPI_DESTNODE_AVB = 209,		     /**< AVB output stream */
+	HPI_DESTNODE_INTERNAL = 210,	     /**< node internal to the device. */
+	HPI_DESTNODE_BLULINK = 211,	     /**< BLU-link output channel. */
 	/* !!!Update this AND hpidebug.h if you add a new destnode type!!! */
-	HPI_DESTNODE_LAST_INDEX = 208	     /**< largest ID */
+	HPI_DESTNODE_LAST_INDEX = 211	     /**< largest ID */
 		/* AX6 max destnode types = 15 */
 };
 
@@ -752,7 +757,8 @@ enum HPI_TUNER_BAND {
 	HPI_TUNER_BAND_TV_PAL_I = 7,	 /**< PAL-I TV band*/
 	HPI_TUNER_BAND_TV_PAL_DK = 8,	 /**< PAL-D/K TV band*/
 	HPI_TUNER_BAND_TV_SECAM_L = 9,	 /**< SECAM-L TV band*/
-	HPI_TUNER_BAND_LAST = 9	/**< the index of the last tuner band. */
+	HPI_TUNER_BAND_DAB = 10,
+	HPI_TUNER_BAND_LAST = 10 /**< the index of the last tuner band. */
 };
 
 /** Tuner mode attributes
@@ -842,8 +848,10 @@ enum HPI_SAMPLECLOCK_SOURCES {
 	HPI_SAMPLECLOCK_SOURCE_NETWORK = 8,
 /** From previous adjacent module (ASI2416 only)*/
 	HPI_SAMPLECLOCK_SOURCE_PREV_MODULE = 10,
+/** Blu link sample clock*/
+	HPI_SAMPLECLOCK_SOURCE_BLULINK = 11,
 /*! Update this if you add a new clock source.*/
-	HPI_SAMPLECLOCK_SOURCE_LAST = 10
+	HPI_SAMPLECLOCK_SOURCE_LAST = 11
 };
 
 /** Equalizer filter types. Used by HPI_ParametricEq_SetBand()
diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c
index 4f2873880b16..8d5abfa4e24b 100644
--- a/sound/pci/asihpi/hpi6205.c
+++ b/sound/pci/asihpi/hpi6205.c
@@ -1,7 +1,7 @@
 /******************************************************************************
 
     AudioScience HPI driver
-    Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
+    Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of version 2 of the GNU General Public License as
@@ -163,6 +163,9 @@ static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
 
 static void delete_adapter_obj(struct hpi_adapter_obj *pao);
 
+static int adapter_irq_query_and_clear(struct hpi_adapter_obj *pao,
+	u32 message);
+
 static void outstream_host_buffer_allocate(struct hpi_adapter_obj *pao,
 	struct hpi_message *phm, struct hpi_response *phr);
 
@@ -283,7 +286,6 @@ static void adapter_message(struct hpi_adapter_obj *pao,
 	case HPI_ADAPTER_DELETE:
 		adapter_delete(pao, phm, phr);
 		break;
-
 	default:
 		hw_message(pao, phm, phr);
 		break;
@@ -673,6 +675,12 @@ static u16 create_adapter_obj(struct hpi_adapter_obj *pao,
 
 	HPI_DEBUG_LOG(INFO, "bootload DSP OK\n");
 
+	pao->irq_query_and_clear = adapter_irq_query_and_clear;
+	pao->instream_host_buffer_status =
+		phw->p_interface_buffer->instream_host_buffer_status;
+	pao->outstream_host_buffer_status =
+		phw->p_interface_buffer->outstream_host_buffer_status;
+
 	return hpi_add_adapter(pao);
 }
 
@@ -713,6 +721,21 @@ static void delete_adapter_obj(struct hpi_adapter_obj *pao)
 
 /*****************************************************************************/
 /* Adapter functions */
+static int adapter_irq_query_and_clear(struct hpi_adapter_obj *pao,
+	u32 message)
+{
+	struct hpi_hw_obj *phw = pao->priv;
+	u32 hsr = 0;
+
+	hsr = ioread32(phw->prHSR);
+	if (hsr & C6205_HSR_INTSRC) {
+		/* reset the interrupt from the DSP */
+		iowrite32(C6205_HSR_INTSRC, phw->prHSR);
+		return HPI_IRQ_MIXER;
+	}
+
+	return HPI_IRQ_NONE;
+}
 
 /*****************************************************************************/
 /* OutStream Host buffer functions */
@@ -1331,17 +1354,21 @@ static u16 adapter_boot_load_dsp(struct hpi_adapter_obj *pao,
 	if (boot_code_id[1] != 0) {
 		/* DSP 1 is a C6713 */
 		/* CLKX0 <- '1' release the C6205 bootmode pulldowns */
-		boot_loader_write_mem32(pao, 0, (0x018C0024L), 0x00002202);
+		boot_loader_write_mem32(pao, 0, 0x018C0024, 0x00002202);
 		hpios_delay_micro_seconds(100);
 		/* Reset the 6713 #1 - revB */
 		boot_loader_write_mem32(pao, 0, C6205_BAR0_TIMER1_CTL, 0);
-
-		/* dummy read every 4 words for 6205 advisory 1.4.4 */
-		boot_loader_read_mem32(pao, 0, 0);
-
+		/* value of bit 3 is unknown after DSP reset, other bits shoudl be 0 */
+		if (0 != (boot_loader_read_mem32(pao, 0,
+					(C6205_BAR0_TIMER1_CTL)) & ~8))
+			return HPI6205_ERROR_6205_REG;
 		hpios_delay_micro_seconds(100);
+
 		/* Release C6713 from reset - revB */
 		boot_loader_write_mem32(pao, 0, C6205_BAR0_TIMER1_CTL, 4);
+		if (4 != (boot_loader_read_mem32(pao, 0,
+					(C6205_BAR0_TIMER1_CTL)) & ~8))
+			return HPI6205_ERROR_6205_REG;
 		hpios_delay_micro_seconds(100);
 	}
 
@@ -2089,7 +2116,7 @@ static u16 message_response_sequence(struct hpi_adapter_obj *pao,
 		return 0;
 	}
 
-	/* Assume buffer of type struct bus_master_interface
+	/* Assume buffer of type struct bus_master_interface_62
 	   is allocated "noncacheable" */
 
 	if (!wait_dsp_ack(phw, H620_HIF_IDLE, HPI6205_TIMEOUT)) {
diff --git a/sound/pci/asihpi/hpi_internal.h b/sound/pci/asihpi/hpi_internal.h
index bc86cb726d79..48380ce2c81b 100644
--- a/sound/pci/asihpi/hpi_internal.h
+++ b/sound/pci/asihpi/hpi_internal.h
@@ -554,17 +554,21 @@ struct hpi_pci {
 	struct pci_dev *pci_dev;
 };
 
+/** Adapter specification resource */
+struct hpi_adapter_specification {
+	u32 type;
+	u8 modules[4];
+};
+
 struct hpi_resource {
 	union {
 		const struct hpi_pci *pci;
 		const char *net_if;
+		struct hpi_adapter_specification adapter_spec;
+		const void *sw_if;
 	} r;
-#ifndef HPI64BIT		/* keep structure size constant */
-	u32 pad_to64;
-#endif
 	u16 bus_type;		/* HPI_BUS_PNPISA, _PCI, _USB etc */
 	u16 padding;
-
 };
 
 /** Format info used inside struct hpi_message
@@ -582,7 +586,7 @@ struct hpi_msg_format {
 struct hpi_msg_data {
 	struct hpi_msg_format format;
 	u8 *pb_data;
-#ifndef HPI64BIT
+#ifndef CONFIG_64BIT
 	u32 padding;
 #endif
 	u32 data_size;
@@ -595,7 +599,7 @@ struct hpi_data_legacy32 {
 	u32 data_size;
 };
 
-#ifdef HPI64BIT
+#ifdef CONFIG_64BIT
 /* Compatibility version of struct hpi_data*/
 struct hpi_data_compat32 {
 	struct hpi_msg_format format;
@@ -682,8 +686,8 @@ union hpi_adapterx_msg {
 		u16 value;
 	} test_assert;
 	struct {
-		u32 yes;
-	} irq_query;
+		u32 message;
+	} irq;
 	u32 pad[3];
 };
 
diff --git a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c
index 7ed5c26c3737..c7751243dc42 100644
--- a/sound/pci/asihpi/hpicmn.c
+++ b/sound/pci/asihpi/hpicmn.c
@@ -1,7 +1,7 @@
 /******************************************************************************
 
     AudioScience HPI driver
-    Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
+    Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of version 2 of the GNU General Public License as
@@ -206,6 +206,14 @@ static unsigned int control_cache_alloc_check(struct hpi_control_cache *pC)
 			struct hpi_control_cache_info *info =
 				(struct hpi_control_cache_info *)
 				&p_master_cache[byte_count];
+			u16 control_index = info->control_index;
+
+			if (control_index >= pC->control_count) {
+				HPI_DEBUG_LOG(INFO,
+					"adap %d control index %d out of range, cache not ready?\n",
+					pC->adap_idx, control_index);
+				return 0;
+			}
 
 			if (!info->size_in32bit_words) {
 				if (!i) {
@@ -225,10 +233,10 @@ static unsigned int control_cache_alloc_check(struct hpi_control_cache *pC)
 			}
 
 			if (info->control_type) {
-				pC->p_info[info->control_index] = info;
+				pC->p_info[control_index] = info;
 				cached++;
 			} else {	/* dummy cache entry */
-				pC->p_info[info->control_index] = NULL;
+				pC->p_info[control_index] = NULL;
 			}
 
 			byte_count += info->size_in32bit_words * 4;
@@ -309,35 +317,18 @@ static const struct pad_ofs_size pad_desc[] = {
 /** CheckControlCache checks the cache and fills the struct hpi_response
  * accordingly. It returns one if a cache hit occurred, zero otherwise.
  */
-short hpi_check_control_cache(struct hpi_control_cache *p_cache,
+short hpi_check_control_cache_single(struct hpi_control_cache_single *pC,
 	struct hpi_message *phm, struct hpi_response *phr)
 {
-	short found = 1;
-	struct hpi_control_cache_info *pI;
-	struct hpi_control_cache_single *pC;
 	size_t response_size;
-	if (!find_control(phm->obj_index, p_cache, &pI)) {
-		HPI_DEBUG_LOG(VERBOSE,
-			"HPICMN find_control() failed for adap %d\n",
-			phm->adapter_index);
-		return 0;
-	}
-
-	phr->error = 0;
-	phr->specific_error = 0;
-	phr->version = 0;
+	short found = 1;
 
 	/* set the default response size */
 	response_size =
 		sizeof(struct hpi_response_header) +
 		sizeof(struct hpi_control_res);
 
-	/* pC is the default cached control strucure. May be cast to
-	   something else in the following switch statement.
-	 */
-	pC = (struct hpi_control_cache_single *)pI;
-
-	switch (pI->control_type) {
+	switch (pC->u.i.control_type) {
 
 	case HPI_CONTROL_METER:
 		if (phm->u.c.attribute == HPI_METER_PEAK) {
@@ -467,7 +458,7 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
 		break;
 	case HPI_CONTROL_PAD:{
 			struct hpi_control_cache_pad *p_pad;
-			p_pad = (struct hpi_control_cache_pad *)pI;
+			p_pad = (struct hpi_control_cache_pad *)pC;
 
 			if (!(p_pad->field_valid_flags & (1 <<
 						HPI_CTL_ATTR_INDEX(phm->u.c.
@@ -531,7 +522,8 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
 
 	HPI_DEBUG_LOG(VERBOSE, "%s Adap %d, Ctl %d, Type %d, Attr %d\n",
 		found ? "Cached" : "Uncached", phm->adapter_index,
-		pI->control_index, pI->control_type, phm->u.c.attribute);
+		pC->u.i.control_index, pC->u.i.control_type,
+		phm->u.c.attribute);
 
 	if (found) {
 		phr->size = (u16)response_size;
@@ -543,34 +535,36 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
 	return found;
 }
 
-/** Updates the cache with Set values.
-
-Only update if no error.
-Volume and Level return the limited values in the response, so use these
-Multiplexer does so use sent values
-*/
-void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *p_cache,
+short hpi_check_control_cache(struct hpi_control_cache *p_cache,
 	struct hpi_message *phm, struct hpi_response *phr)
 {
-	struct hpi_control_cache_single *pC;
 	struct hpi_control_cache_info *pI;
 
-	if (phr->error)
-		return;
-
 	if (!find_control(phm->obj_index, p_cache, &pI)) {
 		HPI_DEBUG_LOG(VERBOSE,
 			"HPICMN find_control() failed for adap %d\n",
 			phm->adapter_index);
-		return;
+		return 0;
 	}
 
-	/* pC is the default cached control strucure.
-	   May be cast to something else in the following switch statement.
-	 */
-	pC = (struct hpi_control_cache_single *)pI;
+	phr->error = 0;
+	phr->specific_error = 0;
+	phr->version = 0;
+
+	return hpi_check_control_cache_single((struct hpi_control_cache_single
+			*)pI, phm, phr);
+}
+
+/** Updates the cache with Set values.
 
-	switch (pI->control_type) {
+Only update if no error.
+Volume and Level return the limited values in the response, so use these
+Multiplexer does so use sent values
+*/
+void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single
+	*pC, struct hpi_message *phm, struct hpi_response *phr)
+{
+	switch (pC->u.i.control_type) {
 	case HPI_CONTROL_VOLUME:
 		if (phm->u.c.attribute == HPI_VOLUME_GAIN) {
 			pC->u.vol.an_log[0] = phr->u.c.an_log_value[0];
@@ -625,6 +619,30 @@ void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *p_cache,
 	}
 }
 
+void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *p_cache,
+	struct hpi_message *phm, struct hpi_response *phr)
+{
+	struct hpi_control_cache_single *pC;
+	struct hpi_control_cache_info *pI;
+
+	if (phr->error)
+		return;
+
+	if (!find_control(phm->obj_index, p_cache, &pI)) {
+		HPI_DEBUG_LOG(VERBOSE,
+			"HPICMN find_control() failed for adap %d\n",
+			phm->adapter_index);
+		return;
+	}
+
+	/* pC is the default cached control strucure.
+	   May be cast to something else in the following switch statement.
+	 */
+	pC = (struct hpi_control_cache_single *)pI;
+
+	hpi_cmn_control_cache_sync_to_msg_single(pC, phm, phr);
+}
+
 /** Allocate control cache.
 
 \return Cache pointer, or NULL if allocation fails.
@@ -637,12 +655,13 @@ struct hpi_control_cache *hpi_alloc_control_cache(const u32 control_count,
 	if (!p_cache)
 		return NULL;
 
-	p_cache->p_info = kcalloc(control_count, sizeof(*p_cache->p_info),
-				  GFP_KERNEL);
+	p_cache->p_info =
+		kcalloc(control_count, sizeof(*p_cache->p_info), GFP_KERNEL);
 	if (!p_cache->p_info) {
 		kfree(p_cache);
 		return NULL;
 	}
+
 	p_cache->cache_size_in_bytes = size_in_bytes;
 	p_cache->control_count = control_count;
 	p_cache->p_cache = p_dsp_control_buffer;
diff --git a/sound/pci/asihpi/hpicmn.h b/sound/pci/asihpi/hpicmn.h
index e44121283047..46629c2d101b 100644
--- a/sound/pci/asihpi/hpicmn.h
+++ b/sound/pci/asihpi/hpicmn.h
@@ -1,7 +1,7 @@
 /**
 
     AudioScience HPI driver
-    Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
+    Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of version 2 of the GNU General Public License as
@@ -21,7 +21,11 @@
 struct hpi_adapter_obj;
 
 /* a function that takes an adapter obj and returns an int */
-typedef int adapter_int_func(struct hpi_adapter_obj *pao);
+typedef int adapter_int_func(struct hpi_adapter_obj *pao, u32 message);
+
+#define HPI_IRQ_NONE		(0)
+#define HPI_IRQ_MESSAGE		(1)
+#define HPI_IRQ_MIXER		(2)
 
 struct hpi_adapter_obj {
 	struct hpi_pci pci;	/* PCI info - bus#,dev#,address etc */
@@ -33,6 +37,9 @@ struct hpi_adapter_obj {
 	u16 dsp_crashed;
 	u16 has_control_cache;
 	void *priv;
+	adapter_int_func *irq_query_and_clear;
+	struct hpi_hostbuffer_status *instream_host_buffer_status;
+	struct hpi_hostbuffer_status *outstream_host_buffer_status;
 };
 
 struct hpi_control_cache {
@@ -55,13 +62,21 @@ void hpi_delete_adapter(struct hpi_adapter_obj *pao);
 
 short hpi_check_control_cache(struct hpi_control_cache *pC,
 	struct hpi_message *phm, struct hpi_response *phr);
+
+short hpi_check_control_cache_single(struct hpi_control_cache_single *pC,
+	struct hpi_message *phm, struct hpi_response *phr);
+
 struct hpi_control_cache *hpi_alloc_control_cache(const u32
 	number_of_controls, const u32 size_in_bytes, u8 *pDSP_control_buffer);
+
 void hpi_free_control_cache(struct hpi_control_cache *p_cache);
 
 void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC,
 	struct hpi_message *phm, struct hpi_response *phr);
 
+void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single
+	*pC, struct hpi_message *phm, struct hpi_response *phr);
+
 u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
 
 hpi_handler_func HPI_COMMON;
diff --git a/sound/pci/asihpi/hpimsginit.c b/sound/pci/asihpi/hpimsginit.c
index 032d563e3708..7eb617175fde 100644
--- a/sound/pci/asihpi/hpimsginit.c
+++ b/sound/pci/asihpi/hpimsginit.c
@@ -1,7 +1,7 @@
 /******************************************************************************
 
     AudioScience HPI driver
-    Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
+    Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of version 2 of the GNU General Public License as
@@ -37,11 +37,15 @@ static u16 gwSSX2_bypass;
 static void hpi_init_message(struct hpi_message *phm, u16 object,
 	u16 function)
 {
-	memset(phm, 0, sizeof(*phm));
+	u16 size;
+
 	if ((object > 0) && (object <= HPI_OBJ_MAXINDEX))
-		phm->size = msg_size[object];
+		size = msg_size[object];
 	else
-		phm->size = sizeof(*phm);
+		size = sizeof(*phm);
+
+	memset(phm, 0, size);
+	phm->size = size;
 
 	if (gwSSX2_bypass)
 		phm->type = HPI_TYPE_SSX2BYPASS_MESSAGE;
@@ -60,12 +64,16 @@ static void hpi_init_message(struct hpi_message *phm, u16 object,
 void hpi_init_response(struct hpi_response *phr, u16 object, u16 function,
 	u16 error)
 {
-	memset(phr, 0, sizeof(*phr));
-	phr->type = HPI_TYPE_RESPONSE;
+	u16 size;
+
 	if ((object > 0) && (object <= HPI_OBJ_MAXINDEX))
-		phr->size = res_size[object];
+		size = res_size[object];
 	else
-		phr->size = sizeof(*phr);
+		size = sizeof(*phr);
+
+	memset(phr, 0, sizeof(*phr));
+	phr->size = size;
+	phr->type = HPI_TYPE_RESPONSE;
 	phr->object = object;
 	phr->function = function;
 	phr->error = error;
@@ -86,7 +94,7 @@ void hpi_init_message_response(struct hpi_message *phm,
 static void hpi_init_messageV1(struct hpi_message_header *phm, u16 size,
 	u16 object, u16 function)
 {
-	memset(phm, 0, sizeof(*phm));
+	memset(phm, 0, size);
 	if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) {
 		phm->size = size;
 		phm->type = HPI_TYPE_REQUEST;
@@ -100,7 +108,9 @@ static void hpi_init_messageV1(struct hpi_message_header *phm, u16 size,
 void hpi_init_responseV1(struct hpi_response_header *phr, u16 size,
 	u16 object, u16 function)
 {
-	memset(phr, 0, sizeof(*phr));
+	(void)object;
+	(void)function;
+	memset(phr, 0, size);
 	phr->size = size;
 	phr->version = 1;
 	phr->type = HPI_TYPE_RESPONSE;
diff --git a/sound/pci/asihpi/hpimsgx.c b/sound/pci/asihpi/hpimsgx.c
index d4790ddc225c..736f45337fc7 100644
--- a/sound/pci/asihpi/hpimsgx.c
+++ b/sound/pci/asihpi/hpimsgx.c
@@ -1,7 +1,7 @@
 /******************************************************************************
 
     AudioScience HPI driver
-    Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
+    Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of version 2 of the GNU General Public License as
@@ -35,6 +35,7 @@ static struct pci_device_id asihpi_pci_tbl[] = {
 static struct hpios_spinlock msgx_lock;
 
 static hpi_handler_func *hpi_entry_points[HPI_MAX_ADAPTERS];
+static int logging_enabled = 1;
 
 static hpi_handler_func *hpi_lookup_entry_point_function(const struct hpi_pci
 	*pci_info)
@@ -312,7 +313,9 @@ static void instream_message(struct hpi_message *phm,
 void hpi_send_recv_ex(struct hpi_message *phm, struct hpi_response *phr,
 	void *h_owner)
 {
-	HPI_DEBUG_MESSAGE(DEBUG, phm);
+
+	if (logging_enabled)
+		HPI_DEBUG_MESSAGE(DEBUG, phm);
 
 	if (phm->type != HPI_TYPE_REQUEST) {
 		hpi_init_response(phr, phm->object, phm->function,
@@ -352,8 +355,14 @@ void hpi_send_recv_ex(struct hpi_message *phm, struct hpi_response *phr,
 		hw_entry_point(phm, phr);
 		break;
 	}
-	HPI_DEBUG_RESPONSE(phr);
 
+	if (logging_enabled)
+		HPI_DEBUG_RESPONSE(phr);
+
+	if (phr->error >= HPI_ERROR_DSP_COMMUNICATION) {
+		hpi_debug_level_set(HPI_DEBUG_LEVEL_ERROR);
+		logging_enabled = 0;
+	}
 }
 
 static void adapter_open(struct hpi_message *phm, struct hpi_response *phr)
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
index 7f0272032fbb..6aa677e60555 100644
--- a/sound/pci/asihpi/hpioctl.c
+++ b/sound/pci/asihpi/hpioctl.c
@@ -1,7 +1,8 @@
 /*******************************************************************************
-
     AudioScience HPI driver
-    Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
+    Common Linux HPI ioctl and module probe/remove functions
+
+    Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of version 2 of the GNU General Public License as
@@ -12,11 +13,6 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-Common Linux HPI ioctl and module probe/remove functions
 *******************************************************************************/
 #define SOURCEFILE_NAME "hpioctl.c"
 
@@ -29,6 +25,7 @@ Common Linux HPI ioctl and module probe/remove functions
 #include "hpicmn.h"
 
 #include <linux/fs.h>
+#include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/moduleparam.h>
 #include <asm/uaccess.h>
@@ -307,10 +304,38 @@ out:
 	return err;
 }
 
+static int asihpi_irq_count;
+
+static irqreturn_t asihpi_isr(int irq, void *dev_id)
+{
+	struct hpi_adapter *a = dev_id;
+	int handled;
+
+	if (!a->adapter->irq_query_and_clear) {
+		pr_err("asihpi_isr ASI%04X:%d no handler\n", a->adapter->type,
+			a->adapter->index);
+		return IRQ_NONE;
+	}
+
+	handled = a->adapter->irq_query_and_clear(a->adapter, 0);
+
+	if (!handled)
+		return IRQ_NONE;
+
+	asihpi_irq_count++;
+	/* printk(KERN_INFO "asihpi_isr %d ASI%04X:%d irq handled\n",
+	   asihpi_irq_count, a->adapter->type, a->adapter->index); */
+
+	if (a->interrupt_callback)
+		a->interrupt_callback(a);
+
+	return IRQ_HANDLED;
+}
+
 int asihpi_adapter_probe(struct pci_dev *pci_dev,
 			 const struct pci_device_id *pci_id)
 {
-	int idx, nm;
+	int idx, nm, low_latency_mode = 0, irq_supported = 0;
 	int adapter_index;
 	unsigned int memlen;
 	struct hpi_message hm;
@@ -388,8 +413,38 @@ int asihpi_adapter_probe(struct pci_dev *pci_dev,
 	hm.adapter_index = adapter.adapter->index;
 	hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
 
-	if (hr.error)
+	if (hr.error) {
+		HPI_DEBUG_LOG(ERROR, "HPI_ADAPTER_OPEN failed, aborting\n");
 		goto err;
+	}
+
+	/* Check if current mode == Low Latency mode */
+	hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
+		HPI_ADAPTER_GET_MODE);
+	hm.adapter_index = adapter.adapter->index;
+	hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
+
+	if (!hr.error
+		&& hr.u.ax.mode.adapter_mode == HPI_ADAPTER_MODE_LOW_LATENCY)
+		low_latency_mode = 1;
+	else
+		dev_info(&pci_dev->dev,
+			"Adapter at index %d is not in low latency mode\n",
+			adapter.adapter->index);
+
+	/* Check if IRQs are supported */
+	hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
+		HPI_ADAPTER_GET_PROPERTY);
+	hm.adapter_index = adapter.adapter->index;
+	hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_SUPPORTS_IRQ;
+	hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
+	if (hr.error || !hr.u.ax.property_get.parameter1) {
+		dev_info(&pci_dev->dev,
+			"IRQs not supported by adapter at index %d\n",
+			adapter.adapter->index);
+	} else {
+		irq_supported = 1;
+	}
 
 	/* WARNING can't init mutex in 'adapter'
 	 * and then copy it to adapters[] ?!?!
@@ -398,6 +453,44 @@ int asihpi_adapter_probe(struct pci_dev *pci_dev,
 	mutex_init(&adapters[adapter_index].mutex);
 	pci_set_drvdata(pci_dev, &adapters[adapter_index]);
 
+	if (low_latency_mode && irq_supported) {
+		if (!adapter.adapter->irq_query_and_clear) {
+			dev_err(&pci_dev->dev,
+				"no IRQ handler for adapter %d, aborting\n",
+				adapter.adapter->index);
+			goto err;
+		}
+
+		/* Disable IRQ generation on DSP side by setting the rate to 0 */
+		hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
+			HPI_ADAPTER_SET_PROPERTY);
+		hm.adapter_index = adapter.adapter->index;
+		hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE;
+		hm.u.ax.property_set.parameter1 = 0;
+		hm.u.ax.property_set.parameter2 = 0;
+		hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
+		if (hr.error) {
+			HPI_DEBUG_LOG(ERROR,
+				"HPI_ADAPTER_GET_MODE failed, aborting\n");
+			goto err;
+		}
+
+		/* Note: request_irq calls asihpi_isr here */
+		if (request_irq(pci_dev->irq, asihpi_isr, IRQF_SHARED,
+				"asihpi", &adapters[adapter_index])) {
+			dev_err(&pci_dev->dev, "request_irq(%d) failed\n",
+				pci_dev->irq);
+			goto err;
+		}
+
+		adapters[adapter_index].interrupt_mode = 1;
+
+		dev_info(&pci_dev->dev, "using irq %d\n", pci_dev->irq);
+		adapters[adapter_index].irq = pci_dev->irq;
+	} else {
+		dev_info(&pci_dev->dev, "using polled mode\n");
+	}
+
 	dev_info(&pci_dev->dev, "probe succeeded for ASI%04X HPI index %d\n",
 		 adapter.adapter->type, adapter_index);
 
@@ -431,6 +524,15 @@ void asihpi_adapter_remove(struct pci_dev *pci_dev)
 	pa = pci_get_drvdata(pci_dev);
 	pci = pa->adapter->pci;
 
+	/* Disable IRQ generation on DSP side */
+	hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
+		HPI_ADAPTER_SET_PROPERTY);
+	hm.adapter_index = pa->adapter->index;
+	hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE;
+	hm.u.ax.property_set.parameter1 = 0;
+	hm.u.ax.property_set.parameter2 = 0;
+	hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
+
 	hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
 		HPI_ADAPTER_DELETE);
 	hm.adapter_index = pa->adapter->index;
@@ -442,8 +544,10 @@ void asihpi_adapter_remove(struct pci_dev *pci_dev)
 			iounmap(pci.ap_mem_base[idx]);
 	}
 
-	if (pa->p_buffer)
-		vfree(pa->p_buffer);
+	if (pa->irq)
+		free_irq(pa->irq, pa);
+
+	vfree(pa->p_buffer);
 
 	if (1)
 		dev_info(&pci_dev->dev,
diff --git a/sound/pci/asihpi/hpios.h b/sound/pci/asihpi/hpios.h
index d3fbd0d76c37..4e383601b9cf 100644
--- a/sound/pci/asihpi/hpios.h
+++ b/sound/pci/asihpi/hpios.h
@@ -41,10 +41,6 @@ HPI Operating System Specific macros for Linux Kernel driver
 
 #define HPI_NO_OS_FILE_OPS
 
-#ifdef CONFIG_64BIT
-#define HPI64BIT
-#endif
-
 /** Details of a memory area allocated with  pci_alloc_consistent
 Need all info for parameters to pci_free_consistent
 */
@@ -155,6 +151,10 @@ struct hpi_adapter {
 	struct hpi_adapter_obj *adapter;
 	struct snd_card *snd_card;
 
+	int irq;
+	int interrupt_mode;
+	void (*interrupt_callback) (struct hpi_adapter *);
+
 	/* mutex prevents contention for one card
 	   between multiple user programs (via ioctl) */
 	struct mutex mutex;